Builder mechanism for winding machines



Nov. 17, 1925.

J. s. BURNHAM BUILDER MECHANISM FOR WINDING MACHINES Filed Nov. 27. 1923 Patented Nov. 17, 1925.

UNITED STATES PATENT OFFICE.

BUILDER MECHANISM FOR WINDING MACHINES.

Application filed Novcmber27', 1923.

To all 'tU/LOHL it may concern:

Be it known that I, JOHN S. BUnNimM, a citizen of the United States, residing at Biddeford, in the county of York andState of Maine, have invented certain new and useful Improvements in Builder Mechanism for IVinding Machines, of which the following is a clear, full, and exact description.

This invention relates to builder mechanism for winding machines and with respect to certain more specific features thereof to a control device for the gain'and traverse of a ring rail.

in seeking to overcome the difficulties which have previously. and for a long time existed in converted builder mechanism to wind different styles or types of bobbins, I have devised an extremely simple and in expensive form of gain control pulley employing two relatively reversable parts providing a very compact and readily adjustable control device. I have also eliminated the necessity of disconnecting one of the chains when altering the mechanism to accommodate another style or type of wind. Other objects will be in part obvious and in partpointed out particularly in the following description.

The invention accordingly consists in the various features of construction, combination of elements and arrangements of parts, which will be exemplified by the construction hereinafter set forth and the scope of the application of which will be indicated by the following claims.

In the drawings wherein is shown one of various possible embodiments of the invention,

Fig. 1 is a general view of a portion of a spinning machine, illustrating generally a builder mechanism, ring rail, bobbin frame etc., with my improved gain control device cooperatively associated.

Fig. 2 .is a top plan view of the gain control device.

Fig. 3 is a side elevation of Fig. 2.

Fig. 4 is a top plan view of the gain c011- trol device shown in Fig. 2 with pulley reversed for filler winding.

Fig. 5 is. a side elevation of Fig. 4.

Fig. 6 is a view in perspective of the reversible gain control pulley.

Referring now more particularly to the drawings there is indicated at 10 in Fig. 1 a portion of the frame of a spinning ma- Selial No. 677,305.

chine, comprising the end standard 11 and the siderail or beam Reference is made to my co-pending application Serial Number 676,075 filed of even date herewith. In said co-pending application, the general arrangement and operation of parts of the machine are set forth in detail. Butinasniueh as the present invention relates only to the gain control pulley and its cradle, there is no necessity for going at length into a description of other parts of a spinning machine, the operation of which is well-known to those skilled in the art.

As in my co pending application a cradle is provided herein designated by the numeral 20. This cradle has cylindrical bosses 21 and 22 in order that it may be positioned for pivotal movement about a horizontal axis in a bracket 23, the latter being in turn secured to the end standard 11 of the spinning machine frame. A shaft is located in the cradle and on this shaft 1 loosely mount a pulley or drum 31 composed of two main elements, an inner core piece 32 and an outer tread member 33. Referring to Fig. 6 it will be seen that the inner core piece 32 provides a chain tread 35, having a chordal flat 36 desirable for use in filler winding of the bobbins. The core piece 32 also has a cylindrical unflattened portion 37 which when the gain control drum is assembled for use in the filler wind of the bobbins, serves as a hub for the outer tread portion 33 of the drum. When it is desired to change over to a warp wind, the gain control pulley assembly is removed from the cradle, the core member 32 is withdrawn, reversed, and returned to the outer tread member 33. This positions the cylindrical or unflattened portion 37 of the core piece 32 in the plane formerly occupied by the tread portion with its flat 36, and the tread portion 35 serves under the new ar rangement as the hub upon which the outer tread member 33 is supported. Figs. 2 and 3 represent the parts as they appear after the reversal from the position shown in Fig. 6. A chain 40 has one end connected to the usual segment 41. In filler winding the other end of the chain is passed partially around the flat 36 at tread 35, and is secured in position by means of a suitable screw or bolt as indicated at 42. For this same character of winding another chain 43 has one end connected to a pulley 44, and the other end passed partially around the outer tread 33 of the gain control pulley assembly. This end of the chain 43 is secured in position by a suitable screw or bolt which also passes completely through the pulley 38 and taps into the core 32 as indicated at 45. In

this manner, the core and outer tread 33 are secured for conjoint rotation on the shaft 30. lVhen modifying the construction to provide for warp winding the screw or bolt indicated at a5 is withdrawn just far enough to permit the removal of the core 32 and its restoration in reverse position' Whereupon the screw indicated at 45 is threaded in at a place provided on the tread portion 35.

It will be seen from the foregoing that in order to change from one character of wind to the other, it is only necessary to disconnect the chain 40, loosen the screw 45, remove, reverse, and restore the core piece 32, tighten up the screw 45, and reattach the end of chain 40 to its new tread 37. Attention is directed to the fact that this eliminates the necessity for a triple tread pulley. It also eliminates the necessity of additional or complemental parts. It permits renac os;

duction in the size of the cradle and provides a device which may be speedily converted.

What I claim is 1. A gain control device for winding machines comprising an adjustable drum or pulley having an outer annular tread memher and an inner core member, the inner core member being removable and reversible and having a flat for filler winding purposes, the shape of the core member being such that arranged in one position it provides a tread part circular and part flat for filler winding and it also provides a hub for the outer tread member, means for securing the parts in said position but permitting their reversal so that the filler winding tread of the core becomes the hub of the outer tread member.

2. A gain control device for winding machines comprising a bracket, a cradle journaled in the bracket, and a pulley rotatively mounted in the cradle, the pulley comprising a core and an outer tread, the core having two tread portions capable of selective use by removing, reversing, and returning the core. 7

JOHN S. BURNHAh l. 

